Yep. I agree. It's frustrating. It would help if MS published a simple upgrade guide for developers, but the closest thing I've seen is this: http://msdn2.microsoft.com/en-us/library/aa480150.aspx and it's really dated (September 2005). Some (also preliminary) information about how Windows Installer handles special folders is here: http://msdn2.microsoft.com/en-us/library/aa370810.aspx

I think you are supposed to create an appropriate subfolder during setup and give it the appropriate permissions in: CSIDL_COMMON_APPDATA\developer\appname\ which translates to something like C:\ProgramData\developer\appname\

Although I got my Action Pack today, the version of Vista included is an damn upgrade, so my plans to set it up on a test drive this afternoon have been set back for a while while I figure out what to do. (That combined with discovering there are problems with Vista activation and changing the channel that the HD is on after it is activated!!!) Consequently, I haven't started testing my applications on Vista yet and I don't know how far theory will carry me. ;-)

...Jim

>
>Yeah there is and I checked permissons and it looks there's a user named Low that has full permissions which I assume will work for all users.
>
>However, getting that path seems to be rather tricky.
>
>GetSpecialFolder(0x23) doesn't get that - it gets ProgramData, which does not have permissions for any user but admins.
>
>It's all very inconsistent...
>
>+++ Rick ---